Paper-cutting machine.



F. W. VICKERY.

PAPER CUTTING MACHINE.

APPLICATION FILED JUNE 15, 19|S.

1,173,904. e Peeeneed Fe1e.29,1916` 3 SHEETS-SHEET l.

F. W. VICKERY.

' PAPER CUTTING MAcHmE.

I APPLICATION FILED JUNE I5, |915.. e Lm. e Peteneed Feb. 29,1916. 3 SHEETS-SHEET 2.

FREDERICK WILLIAM VICKERY, OF LONDON, ENGLAND.

PAPER-CUTTING MACHINE.

Appliaton filed June 15,

' such rollers being caused to revolve by suitable mechanism connected'to an adjustable crank pinbn a driving wheel. lVith such machines only one half of the revolution of the driving wheel is usually utilized for advancing the paper, the cross cut being made by a vertically moving knife during the secf' ond half of the revolution.

It has been proposed in connection with printing presses operating from re'els with a flat printing bed to provide feeding-off orA delivery rollers the cutter having two movements for every one revolution of the operating member. In this construction the rotation of the rollers was commenced at various' speeds according to the size of sheet being printed. While this mechanism was satisfactory for the work it had to perform, namely feeding off a length already measured lov another device, it could not itself independently accurately and satisfactorily measure paper from the reel. Further the cross cut was made by the Ausual vertically moving knife.

Now the object of my invention is to measure two complete lengthsfof material of any desired lengths for one revolution of the driving member; each measurement occupying approximately one half of the revolution for any length of measurement, and to provide a mechanism which will employ approximatelv the same degree of circumferential travel for any length of sheet.-

The cross cut is made by a revolving knife timed to sever the web during the time the web is stationary, that is while the crank pin is passing the dead centers. Various mechanisms vmay be employed for insuring this accurate double measurement and cross cutting, but I prefer to connect my measuring rollers through suitable clutches, gears, etc., direct to the ladjustable crank pin on the Specification of Letters Patent. Patented Pelo, 29, 1916.

1915. Serial No. 34,187.

driving wheel, whereby I obtain an absolutely accurate measurement of any desired llength and two lengths for every revolution annexed drawings which shows four eXamples of mechanism for carrying my invention into effect.

Figure' 1 is an elevation of a mechanical clutch device for operating the measuring feed roller and cross cut knife and showing sufficient of a machine to enable my invention to be understood. Fig. 2 is a plan of the mechanical clutch device shown in Fig. 1. Fig. 3 is an elevation of a device for operating the measuring feed roller by racks capable of being'moved from one side of the gear wheel on the measuring feed roller to the other, to revolve the measuring feed roller in the same direction at each reciprocating movement ofthe racks, and showing the cross cut knife and method of operating same. Fig. 4L is a plan of an electrical clutch device for operating the measuring Yfeed roller. Fig. 5, is an elevation'of a ratchet and pawl device for operating the measur- 1 with a `toothed wheel 2 which mesheswith a toothed wheel 3 on the pressure roller 4 so that the feed roller 1 and the pressure4 roller 4 are always in gear, the pressure roller being kept on to the feed roller by springs, weights or other means not shown. 0n the shaft5 of the feed roller I position a double faced` clutch 6 such clutch 6 being held to the axle bv a kev on the shaft riding in a slot 7 in theclutch 6 so that it will revolve with the shaft 5 and also be capable of sliding along the shaft 5. (ln the outside of this clutch 6. Ivlooselv position toothed wheels`8, 9 each being provided with a face for engagement with the clutch 6v and I connect each of the wheels lS, 9 with a toothed rod 10, 11 positioned on opposite sides of the shaft 5 and pivoted at 1Q to a lug 13 on a driving disk 14, the lug 13 being secured to a screw .radially positioned in the driv- 6 is provided with a groove 16'in which is positioned one end of a rocking lever'17 this being pivoted at 18 to some part of the frame of the machine (not-shown) the other end of the rocking lever 17 entering a double .actioned cam /19 fixed on the Shaft 15 of the,

driving disk 14 so that as the driving disk is revolved the cam 19 will operate the rocking lever 17, to put it in gear with either of the wheels 8,9 alternately duringone revolution f the driving disk 14 and when the pivot 12 shaftj'l and shaft 5 are in line,

or in other words when the pivot '#12 isl passing over `thefdeadr center which occurs twice during.,k each revolution ofthe driving disk 14. thecamy 19 operates the rocking lever 17 tof'declutch one* wheel and clutch the opposite one'. Now Athe driving disk 14 which is driven from the mainfdrive wheel k20 moves in direction of thefarrwgafter the pivot 12 has got over theidead center, shown in Fig. 1, the'jlcamfl19'will' actuate the rocking lever to vplace the clutch 6 in gear with the Wheel 9,` and the rod 11 lwill during the movement turn the wheel 9 and in conse quence. of the clutch being in gear with the wheel 9, will also turn the feed`roller 1 to feed the paper 21 from the reel 22 to the cross cutting knives 22, 23 and just as the pivot 12l is reaching the other 'dead center the cam 19 will again operate the rocking lever 17 and remove the clutch 6 from the wheel 9 so that the feed roller is not actuated but remains at rest during which time the paper is cut by the knives, butso soon as the pivot 12 has passed over the dead center the cam 19 moves the rocking lever 17 a further distance and clutches it with the wheel 8 and during this half of the revolution of the driving disk 14 the rod 10 pulls on the wheel 8 and this being clutched to the shaft 5 will move the feed roller 1 until the pivot 12 again approaches the dead center, thus I obtain two feeds ofA paper to the knives during one revolution of the driving disk 14. -The rods 10, 11 are ,held up to the wheels 8, 9 by slings 24, 25 both being pivoted to the axle and provided with rollers 26, 26, 27, 27 against which the backs of the rods 10, 11 have sliding action. The driving disk 14 is provided with-teeth, gearing with a wheel 28 the shaft of which is provided with an elliptic gear wheel 29 meshing with an elliptic gear wheel 30 on the axle carrying the revolving cross` cutting knife 22a-which vhas action against the `fixed knife 23.

31, 31 are nip rollers which are driven 33 is anhand for carrying thel cut sheets, from the knives'and 34 is-a roller to direct Or inthe cut sheets on to the band- 33. stead of employing the above described clutch mechanism I may employ clutches (such as free Wheel clutches) on the shaft '5 of the feed roller 1 operating in diverse directions and vconnect such clutches each Q with the ,rod'sl10, 11 positioned on opposite sides of the ,feed roller 1 and gearing or having frictio'nal contact with the clutches,

the rods 10, 11 being pivoted to the driving disk 14 as before so that one rod during the half revolution of the driving disk will ac tuatev its clutch and cause it to revolve the feed roller to feed the paper, the other rod and clutch riding free,'and during-the other :half of the revolution of the disk the clutch of the first mentioned rod will ride freely over the shaft of the feeding roller While the second mentioned rod, which in the previous half revolution performed no Work, will cause its clutch to engage the shaftof the-feed roller andmove'itin the same direction as the previous movement to feed the paper, .but during thetime the pivot ofthe rods is passing the dead'ce'nterswhich occur twice in eachV revolution of the disk, there is novmovement 'of the'fee'd roller "and dur-v ing this time thepaper is atrest and the cutting is performed. By this construction.

the cam 19 and rocking lever 17 may be dis` I.

Fig. 3 the feed roller 1 and tuating the feed roller by a clutch I affix on i the shaft 5`of the feed'roller a toothed wheel 56'and on the-opposite sides of same I position the racks 10, 11 these being parallel with each other and secured at one Aend to a cross head 57 having a race 58 invwhich slides a block 59 to which is connected the adjustable motion pin 12 of the driving disk 14. The racks 10, 11 are connected at their opposite ends by a `bar 60 and surrounding the axle 5 is a head 61 inclosing the racks and having an oval shaped hole 62 encircling the aXle 5, the head 61 carrying a T shaped guide piece 63 the end of which is pivoted to a stud 65 secured to the frame of the machine outside of the driving disk, such guide piece 63 also passing through a projection 66 on the cross head 57 and clear of the pin 12. To the head 61 I secure a lug 67 this being connected to one endof a bent lever 68 pivotedv at 69 to the frame of the machine the other end of the bent lever carrying two rollers 70, 70 engaging a cam flange 71 arranged on the driving disk 14 on the opposite side to that of the pin 12. Now as the driving disk 14 is revolved the cam flange 71 at the end of the each stroke of the racks 1Q, 11 will act upon the bent lever 68 and rock same, and this will move over the racks for one or the other to engage the wheel 56 to drive same during the next motion of the racks, the periodof rest while the pin 12 is passing over thedead centers being the same as at Fig. 1. During the revolution of the driving disk 14 the pin actuates the block 59 which slides in the race 58, and through the block causes a reciprocation of the cross head 57 and racks 10, 11 the projection sliding over the piece 63 to keep the racks 10, 11 moving in the proper direction and valways with one of the racks engaged with the teeth of the wheel 56 and as the pin 12 arrives vat the dead center the cam flange 71 will operate the lever 68 and throw over the racks 10, 11 for the engagement with the other side of the wheel 56 so that the wheel 56 and theI roller 1 will always be. moved in the same direction. It is understood that with this construction the Wheels 36, 37 these being insulated' from the shaft15 and I position a-contact 38 having action on the contacts 34a, 35 as the disk l14 is revolved, and against the wheels 36,

37 I position contacts 39, 40. I employ eleci tromagnets 41, 42 positioned on each side of 'an insulatedportion of the rocking lever 17 and I connect such magnets and contacts up by wiring with a battery 43 so that.as the contact 34a is passing over the contact 38 the current from the lbattery is passed through the wire 44 through the magnet 41, wire 45, contact 40, wheel 37, wire 46 which connects the wheel 37 with the contact 34a, through contacts 34, 38 and wire`47 to battery 43, thus energizing the magnet 41 which draws over the rocking lever 17 and then puts the clutch 6 into gear with the Wheel 9 as shown, this clutching taking place duringone half revolution of the driving disk 14 but during the o-ther half revolution of the driving disk 14 the Contact 35 has come into action with the Contact 38 and lthen the current runs from the battery 43 through wire 44l to and through the magnet 42 then by wire 48 to contact 39, wheel 36, wire 50 '(which connects the wheel 36 with the contact 35) 38 and wire 47 to battery, this action energizing the magnet 42 and attracting the rocking lever l17 so as to put the clutch into gear with the wheel 8. There is a space between the ends of contacts 34, 35 which corresponds with the ldead centers of the pivot 12 so that while these spaces are passing over the contact 38 there is no excitation of the magnets consequently thev clutch 6 is in the off position in exactly the same manner as in Fig. 1, the operation of the feeding roller being also the same. Or instead of connecting the two rods 10, 11 to clutches If may connect them to links 51, 52, asin Fig. 5, loosely pivoted to the shaft of the feeding Lroller 1 and looking in opposite directions, 4these links 51, 52 carrying pawls 53, 54 which engage a ratchet wheel 55 fixed -on the axle 5 of the feed roller 1,

vsimilarmanner in which the clutches before.

With

Amentioned actuate the 'feed roller,

this construction it will be understood that only certain lengths' of sheet can be accu` rately cutz'. e. when the stroke of the pin 12 pitch of the teeth of yradially positioned on the driving -disk so that' byactuating this screw the pivot of the rods canvbe positioned at varying distances radially from thel axis of the drivingdisk' to vary the amount of movement ofthe rods and consequently vary the extent of travel of the feeding roller.

In the drawings I have not shown the framework of the machine butv it will be understood that such is employed and that the shafts of all the wheels employed are mount- 40 'i i of the material to be cut may be varied.

nism connected with said roller and adjustable for causing the material to be fed at different lengths, said actuating mechanism ing material to the cutting mechanism, actuating mechanism connected to said roller and adjustable for causing the material to vbe measured at different lengths, and means coperative with said actuating mechanism for causing two intermittent and complete forward feedingl movements of the roller upon each cycle. of operation of said actuating mechanism.

vancing material to the cutting mechanism, i. actuating mechanism connected to said roller and adjustable for causing the mate-- rial to be measuredat different lengths,jrol 3. Ina machine for Cuttingmaterial, cutfeed roller for advancing material, gear ting mechanism, affeeding roller for adtating means for operating said actuating mechanism; and means coperating with'v said actuating mechanism for causing two intermittent and Icomplete forward feeding movements of the roller upon each full rotation of said rotating operating means.

4. In a machinefor cutting material, cutting mechanism, a feeding roller-for advancing and measuring the material to be cut by' said cutting mechanism, a rotating member,

and means connecting said roller and rotating member for imparting two 'full 'forward vfeeding movements to the former upon each full rotation of the latter, said connecting ,means having a radially adjustable connec tion with said member whereby the length 5. In a machine for cutting material, cutting mechanism, a feeding rolle'i` for advancing and measuring material to be cut, a rotating member, means connectingy said roller and rotating member for imparting two full intermediate forward feeding Amovements toI said roller upon each full rotationof said rotating member', said connecting means having a radially adjustable'connection with ,saidrotating member'whereby the length of the material to be cut may beA varied, and means for operating said cut- I ting means at the intervals between each full rotation ofsaid feeding roller.

. 6. In a machine of the character described, a pair of rollers for feeding material for- Wa'rd, a driving gear, a shaft, a pair of gear wheelsfloosely mounted on said shaft, clutch members keyed to said sha-ft and engageable with' 's`aid gears, a rack bar for each gear and in mesh therewith, said bars extending.

f on 'opposite' sides of said shaft` means pivotally connecting said bars lto said driving Wheel whereby said racks are reciprocated,

and means operated vfrom'said driving wheel by actuating said clutch members for `alternately engaging said gears during one revolutio'n of said wheel, said rollers being oper atively connected to said shaft.

'7. In a machine of the character described, a pair of rollers for feeding thel material forward, a shaft having one of said rollers `operatively connected thereto, rack bars eX- means for rotating said roller, a driving wheel adapted to rotate said roller with two full feeding. movements to each full rotary movementof the wheel, rack bars adapted to mesh with said gear means at 'substan- 'tially diametrically opposite points and having a crank connection with 'said wh'eel whereby said bars are reciprocated, and means for automatically causing said rack bars to effectively operate said feed roller alternately upon each reciprocating movement of said bars. C

9. In a machine for cutting sheet material, cutting knives, a feed roller for advancat substantially diametrically opposite points v and. having a crankconnection with said wheel whereby said bars are reciprocated, means for automatically causing said bars to effectively operate said feed roller alternately upon each reciprocating movement thereof, each reciprocating movement of the racks. effecting a complete and distinct feeding operation ofvsaid roller, and means operated from said driving wheel for causing said knives to cut the material between the end and beginning of each reciprocating stroke of saidracks.

10. -Ina machine for cutting sheet material, cutting knives, a feed roller for advancing material to said knives and measuring the 1 length thereof to be cut, gear means for rotating said roller, a driving wheel, rack bars adapted to mesh with said gear means at A substantially diametrically opposite points ing material to said knives and measuring Y meansl for automatically causing said bars to effectively operate said feed roller alternately upon each reciprocating movement thereof, each reciprocating movement of the racks efecting a complete and distinct feedincremeing operation of said roller, means operated from said driving Wheel for causing said knives to cut the material between the end and beginning of each reciprocating stroke of said racks, and means for adjusting said Crank connection whereby the length of material fed is varied.

In testimoni.7 whereof have hereunto set my haine, in presence of two subscribing Witnesses.

FREDERCK WILLIAM VICKERY. 

